BatchDeleteCommand Class Reference

Undoable bulk deletion (perf-plan Phase A2): one engine swmm_*_delete_many call per kind instead of K per-object deletes. More...

#include <mapundostack.h>

Inheritance diagram for BatchDeleteCommand:

Collaboration diagram for BatchDeleteCommand:

Classes
struct	Target

Public Member Functions
	BatchDeleteCommand (SWMMModelLayer *layer, const QList< Target > &targets, MapCanvas *canvas, const QString &text)
void	redo () override
Public Member Functions inherited from BulkEditCommand
	BulkEditCommand (SWMMModelLayer *layer, const QString &text, QUndoCommand *parent=nullptr)
void	redo () override
void	undo () override

Detailed Description

Undoable bulk deletion (perf-plan Phase A2): one engine swmm_*_delete_many call per kind instead of K per-object deletes.

The constructor creates one snapshot-only DeleteObjectCommand child per target — every snapshot is taken BEFORE anything is deleted, while all indices are still pre-batch — with setEngineAppliedByBatch(true) so the children's redo() are no-ops. redo() performs the whole deletion through SWMMModelLayer::applyDeleteMany inside the inherited BulkEdit scope; undo() is inherited: children restore per-object in reverse order (the rare direction — documented as O(K·N)).

Constructor & Destructor Documentation

BatchDeleteCommand()

BatchDeleteCommand::BatchDeleteCommand	(	SWMMModelLayer *	layer,
		const QList< Target > &	targets,
		MapCanvas *	canvas,
		const QString &	text
	)

Here is the call graph for this function:

Member Function Documentation

redo()

void BatchDeleteCommand::redo ( )

override

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The documentation for this class was generated from the following files:

• /home/runner/work/openswmm.gui/openswmm.gui/include/map/mapundostack.h
• /home/runner/work/openswmm.gui/openswmm.gui/src/map/mapundostack.cpp